The bottle itself, the capacity is accordingly quite large, but nevertheless well-dimensioned. The material looks like perfectly ordinary plastic and is accordingly robust, so fall down is not a problem. The Spühlmaschinengang it has endured without any problems. First I have that thing filled with tap water, after a few hours was not to notice change in taste. Then had to water her carbonated, purely filled up to half, screwed and shaken. You get the bottle in any case at something close, but you have neat power in the hands have when screwing, women and children could there possibly have problems. The ultimate test, the fact does not create bottle, follow at the same time. Filled hot mint tea, closed up and left to stand overnight, usually you can smell the peppermint even after washing for several weeks / months. After Spühlmaschinenwaschgang the smell was back out completely. That convinced me and the manufacturer's promises seem to come true. Now she must score nurnoch in long-term test, but it seems to be robust